ALUMNUS Meaning of ALUMNUS in English [ ə'lʌmnəs ]■ noun ( plural alumni -ni ) a former pupil or student of a particular school, college, or university.OriginC17: from L., 'nursling, pupil', from alere 'nourish'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004